CVE-2024-47723 Information

Description

In the Linux kernel the following vulnerability has been resolved:

jfs: fix out-of-bounds in dbNextAG() and diAlloc()

In dbNextAG() there is no check for the case where bmp->db_numag is greater or same than MAXAG due to a polluted image which causes an out-of-bounds. Therefore a bounds check should be added in dbMount().

And in dbNextAG() a check for the case where agpref is greater than bmp->db_numag should be added so an out-of-bounds exception should be prevented.

Additionally a check for the case where agno is greater or same than MAXAG should be added in diAlloc() to prevent out-of-bounds.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Reference

https://git.kernel.org/stable/c/0338e66cba272351ca9d7d03f3628e390e70963b https://git.kernel.org/stable/c/ead82533278502428883085a787d5a00f15e5eb9 https://git.kernel.org/stable/c/6ce8b6ab44a8b5918c0ee373d4ad19d19017931b https://git.kernel.org/stable/c/c1ba4b8ca799ff1d99d01f37d7ccb7d5ba5533d2 https://git.kernel.org/stable/c/128d5cfdcf844cb690c9295a3a1c1114c21fc15a https://git.kernel.org/stable/c/96855f40e152989c9e7c20c4691ace5581098acc https://git.kernel.org/stable/c/e63866a475562810500ea7f784099bfe341e761a

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.1